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Ferroelastic Toughening in Bismuth Vanadate

Baker, Theresa L. and Faber, K. T. and Readey, D. W. (1991) Ferroelastic Toughening in Bismuth Vanadate. Journal of the American Ceramic Society, 74 (7). pp. 1619-1623. ISSN 0002-7820. doi:10.1111/j.1151-2916.1991.tb07148.x.

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Bismuth vanadate has been used as a model system to examine toughening by stress-induced domain motion in a ferroelastic material. Fracture toughnesses in the ferroelastic and paraelastic states have been compared. Toughening and R-curve behavior have been observed in the ferroelastic state. Single crystals of BiVO_4 show domain nucleation and propagation under compressive loading and domain generation during fracture. The increase in toughening in the ferroelastic state can be explained by a combination of crack deflection and domain wall motion, the latter contributing to R-curve behavior.

Item Type:Article
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Faber, K. T.0000-0001-6585-2536
Additional Information:© 1997 The American Ceramic Society. Manuscript No. 197083. Received December 6, 1990; approved March 28, 1991. Presented at the 91st Annual Meeting of the American Ceramic Society, Indianapolis, IN, April 24, 1989 (Basic Science Division, Poster No. 5-BP-89). Supported by the National Science Foundation under Grant No. DMR 8351476. Single crystals of BiVO_4 were graciously provided by Auguste Ferretti of E. I. du Pont de Nemours and Co. The authors acknowledge helpful discussions with Dr. M.V. Nevitt, the transmission electron microscopy of Dr. R. S. Rai, and the high-temperature hardness measurements of J. D. French.
Funding AgencyGrant Number
NSFDMR 8351476
Subject Keywords:toughening; ferroelastic materials; bismuth; vanadates; domains
Issue or Number:7
Record Number:CaltechAUTHORS:20140908-181329539
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49441
Deposited By: George Porter
Deposited On:10 Sep 2014 23:52
Last Modified:10 Nov 2021 18:44

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